公开(公告)号：US5020456A

公开(公告)日：1991-06-04

申请号：US486065

申请日：1990-02-28

申请人： Mark J. Khinkis ,  Hamid A. Abbasi ,  Robert A. Lisauskas ,  Daniel C. Itse

发明人： Mark J. Khinkis ,  Hamid A. Abbasi ,  Robert A. Lisauskas ,  Daniel C. Itse

IPC分类号： F23G5/00 ,  F23G5/14 ,  F23G5/50 ,  F23L9/02

CPC分类号： F23G5/14 ,  F23G5/002 ,  F23L9/02 ,  F23G2900/00001

摘要： A furnace for combustion wherein a combustion chamber is configured such that waste can be advanced from a drying zone, to a combustion zone, to a burnout zone, and then into an ash pit. An air source provides air for drying, combustion and burnout in a primary combustion zone (PCZ). Fuel or a fuel/recirculated flue gas mixture is injected above the PCZ to create a mostly reducing substoichiometric secondary combustion zone (SCZ), to reduce NO.sub.x and decompose other nitrogen bearing compounds entering the SCZ. Vitiated air is injected into the combustion chamber above the mostly reducing SCZ. A process for combustion of the waste includes introducing the waste into the combustion chamber, advancing the waste through the combustion chamber, supplying combustion air to the combustion chamber for drying and combusting the waste and final ash burnout, and removing ash products from the combustion chamber. The fuel or fuel/recirculated gas mixture is supplied into the combustion chamber to create substoichiometric conditions for NO.sub.x reduction and nitrogen bearing compounds decomposition. Overfire air is supplied into the combustion chamber above the substoichiometric zone for thorough mixing and at least partial burnout of combustibles contained within the waste/fuel combustion products.

公开(公告)号：US4457241A

公开(公告)日：1984-07-03

申请号：US469117

申请日：1983-02-23

申请人： Daniel C. Itse ,  Craig A. Penterson

发明人： Daniel C. Itse ,  Craig A. Penterson

IPC分类号： F23D1/02 ,  F23K5/00

CPC分类号： F23D1/02 ,  Y02E20/344

摘要： A method of burning pulverized coal and other fuels comprises the steps of containing a primary flowing stream of coal/air mixture received adjacent an inlet end of a tubular nozzle for discharge at an outlet end into a combustion zone of a furnace for burning. The stream is accelerated in a convergent venturi section upstream of the outlet to distribute and concentrate the coal particles toward a central portion of the venturi in a minimum area throat, followed by decelerating the flow downstream of the venturi throat in a convergent flow section while forming a shallow, annular, conically shaped flow pattern around a hollow spreader cone mounted in the convergent section. The annular flow is caused to swirl around the axis of the cone by vanes outwardly thereof within the convergent flow section of the venturi, thus forming a stable, annularly-shaped, swirling flow pattern for discharge into the combustion zone, wherein the coal is burned in an elongated flame pattern extending along the stabilized conical flow pattern. A zone of high temperature and reducing atmosphere is formed adjacent the hollow outer end of the cone due to recirculation of combustion products into the rich fuel/air mixture wherein the volatiles in the coal are driven off early in the combustion process and are rapidly burned in a continuing process reducing the formation of oxides of nitrogen.

摘要翻译： 燃烧煤粉和其他燃料的方法包括以下步骤：将邻近管状喷嘴的入口端接收的煤/空气混合物的一次流动流在出口端排放到用于燃烧的炉的燃烧区中。 流在出口上游的汇流文丘里管部分加速，以将煤颗粒分布并集中在最小面积喉部中的文丘里管的中心部分，随后在汇流流动部分中将文丘里喉部下游的流减速，同时形成 围绕安装在收敛部分的中空吊具锥体的浅的，环形的，圆锥形的流动图案。 通过文丘里管的会聚流动部分内的叶片向外围绕圆锥体的圆周流动环形流动，从而形成一个稳定的，环形的旋流模式，用于排放到燃烧区，其中煤被燃烧 沿着稳定的锥形流动图案延伸的细长火焰图案。 由于燃烧产物再循环到富燃料/空气混合物中，邻近锥体的中空外端形成高温和还原气氛的区域，其中煤中的挥发物在燃烧过程中被早期驱除并迅速燃烧 持续的方法减少了氮氧化物的形成。

公开(公告)号：US08075858B1

公开(公告)日：2011-12-13

申请号：US12807060

申请日：2010-08-26

申请人： Daniel C. Itse ,  David C. Itse

发明人： Daniel C. Itse ,  David C. Itse

IPC分类号： B01D53/34 ,  B01D53/74

CPC分类号： B01D53/79 ,  B01D2258/0283 ,  B01D2259/122 ,  B01D2259/124 ,  B01D2259/128 ,  B01F3/04056 ,  B01F5/0486 ,  B05B1/265 ,  B05B1/3073 ,  B05B1/3405

摘要： An injector element that can be used to inject pollution reacting chemicals or other reactants into a container of waste gas or aqueous streams so as to improve the function of the process by removing any pollutants contained therein. This injector element has an exit defined as a trumpet-shaped device which forms an angle of 45 to 135 degrees between the axial line formed by the placement of the injector element within the waste gas or aqueous stream. This device is eminently suitable for use in solid, liquid or gas fired steam generating facilities. By placing the device just above the waste gas stream generated by the boiler the early removal of the pollutants using this element can enable the facility to comply with environmental regulations and increase the steam generating efficiency of the facility.

摘要翻译： 一种可用于将污染反应化学品或其他反应物注入废气或水流容器的注射器元件，以通过除去其中所含的任何污染物来改善该方法的功能。 该喷射器元件具有被定义为小号形装置的出口，其在通过在废气或含水流中的喷射器元件的放置形成的轴线之间形成45至135度的角度。 该装置非常适用于固体，液体或燃气蒸汽发生设施。 通过将设备放置在锅炉产生的废气流的正上方，使用该元件尽早清除污染物可使设施符合环境规定并提高设备的蒸汽产生效率。

公开(公告)号：US5556447A

公开(公告)日：1996-09-17

申请号：US256552

申请日：1995-01-23

申请人： Srivats Srinivasachar ,  Joseph Morency ,  Daniel C. Itse

发明人： Srivats Srinivasachar ,  Joseph Morency ,  Daniel C. Itse

IPC分类号： A62D3/00 ,  B09C1/06 ,  B09C1/08 ,  C22B1/08 ,  C22B1/242 ,  C22B5/16 ,  C22B7/02 ,  C22B13/00 ,  C22B17/00 ,  C22B30/00 ,  C22B43/00

CPC分类号： C22B43/00 ,  B09C1/06 ,  B09C1/08 ,  C22B1/08 ,  C22B1/242 ,  C22B13/00 ,  C22B17/00 ,  C22B30/00 ,  C22B5/16 ,  C22B7/02 ,  F23G2201/50 ,  F23G2209/24 ,  F23G2900/50206

摘要： A process for treating wastes contaminated by toxic metals and/or organic materials is disclosed. The process involves heating the metal-contaminated wastes to a temperature sufficient to volatilize the metals. This temperature is also high enough to destroy or volatilize organic contaminants. The metal vapors are contacted with a sorbent which is reactive with the metals and sequesters them, thereby forming a non-leachable complex which can be disposed as non-hazardous conventional waste.

摘要翻译： 公开了一种处理被有毒金属和/或有机材料污染的废物的方法。 该方法包括将金属污染的废物加热到足以使金属挥发的温度。 该温度也足够高以破坏或挥发有机污染物。 金属蒸气与与金属反应并将其螯合的吸附剂接触，从而形成不可浸出的络合物，其可以作为非危险的常规废物处理。

公开(公告)号：US4479442A

公开(公告)日：1984-10-30

申请号：US469019

申请日：1983-02-23

申请人： Daniel C. Itse ,  Craig A. Penterson

发明人： Daniel C. Itse ,  Craig A. Penterson

IPC分类号： F23D1/02 ,  F23K5/00

CPC分类号： F23D1/02

摘要： A new and improved burner for pulverized coal comprises a tubular nozzle for containing a primary, flowing stream of coal/air mixture having an outlet for discharging the stream into a combustion zone of a furnace. A venturi is mounted in the nozzle having a convergent section, a throat, and divergent flow section adjacent the outlet. The convergent section concentrates the pulverized coal toward a central portion of the flowing stream in the throat of the venturi. A conical flow spreader is mounted in the divergent section and includes a hollow, open outer end. The spreader cone and the divergent flow section of the venturi form an annular, expanding, flow pattern of coal/air mixture for discharge into the combustion zone and a plurality of swirl vanes between the spreader cone and wall of the divergent section impart swirl to stabilize an annular discharge of the primary coal/air stream from the nozzle to form a high temperature reducing zone wherein a portion of the hot combustion products are recirculated back toward the open end of the flow spreader so that volatiles in the coal are driven off rapidly and burned in a fuel-rich, reducing atmosphere, minimizing the formation of NO.sub.x . A stream of secondary air is introduced by vanes to swirl around the primary coal/air stream discharged from the outlet forming a long stable flame pattern providing a relatively slow combustion rate.

摘要翻译： 用于粉煤的新的和改进的燃烧器包括管状喷嘴，其用于容纳主要流动的煤/空气混合物流，其具有用于将流排放到炉的燃烧区中的出口。 文丘里管安装在喷嘴中，其具有与出口相邻的会聚部分，喉部和发散流动部分。 收敛部分将粉煤集中到文丘里管喉部中的流动流的中心部分。 锥形扩张器安装在发散部分中，并且包括中空的开放的外端。 文氏管的扩张锥体和发散流体部分形成一个环形，膨胀的煤/空气混合物的流动模式，用于排放到燃烧区域中，并且扩散器锥体和扩散部分壁之间的多个涡流叶片赋予涡流以稳定 来自喷嘴的初级煤/空气流的环形排放形成高温降低区，其中一部分热燃烧产物被再循环回流动扩展器的开口端，使得煤中的挥发物被快速驱除， 在燃料丰富，减少的气氛中燃烧，使NOx的形成最小化。 二次空气流由叶片引入围绕从出口排出的初级煤/空气流旋转，形成提供较慢燃烧速率的长稳定的火焰图案。